When I upgraded my pump, I wired in a switch. There are 3 wires going into the pump. If I remember correctly, wire 4 is brown and is the hot wire. I ran a wire from it up to a switch I put on the bracket under the fuse box. For the hot lead, I hooked to the "bolt" on the front of the fuse box. Always put a fuse inline. I also have the stock fans wired to come on. On low.